ML17037C692

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Table 7.2-1 (Cont'D) 4 of 6
ML17037C692
Person / Time
Site: Nine Mile Point Constellation icon.png
Issue date: 02/06/2017
From:
Niagara Mohawk Power Corp
To:
Office of Nuclear Reactor Regulation
References
Download: ML17037C692 (1)


Text

NMPNS-2 TABLE 7.2-1 (CONT'D)

Valve Location Number Approximate Valves Relative to Valve and/or of Pipe Size, Per Primary Operator Power to Power to Isolation Closing Normal Line Isolated Lines In ~ Line ~Grou Containment eM3 Ope~n,6) ~cc,c) 1 ~Time 7,11,12) Status(9,lO) emarks Instrument sensing line As required Outside Flow check Spring Excess flow Open) Typical of Class B (not part of protection Outside Hand Hand Hand Open) instrument lines which )AS

) do not form part of system)

) protection system Service air to drywell B Inside Hand Hand Hend Closed Only need during B Outside Hand. Hand Hand Closed maintenance Instrumentgss to Later Inside Check Process Reverse flow Open )AS drywell Outside AO Air/A-c Spring RM Standard Open Reactor Bldg. closed 3-6 B Outside MO D-c D-c RM Standard Open loop cooling water in B Inside Check Process Reverse flow Open As Reactor Bldg. closed 3-8 B Outside MO D-c D-c Standard Open loop cooling water out B Inside MO A-c A-c Standard Open Demineralized water in Inside Check Process Reverse flow Closed Outside MO A-c A-c RM Standard Closed Drywell purge inlet 30 Inside AO butterfly A-c/Air Spring A>F Standard Closed [AS Outside AO butterfly A-c/Air Spring A,F Standard Closed Drywell main exhaust 30 Ins id.e AO butterfly A-c/Air Spring A>F Standard Closed (AS Outside AO butterfly A-c/Air Spring A,F Standard Closed Drywell exhaust bypass Outside AO A-c Spring A,F Standard Closed Suppression chamber purge Inside AO butterfly A-c/Air Spring A,F Standard Closed inlet Outside AO butterfly A-c/Air Spring A,F Standard Closed Suppression chamber exhaust 1 Outside AO A-c Spring A>F Standard Closed valve bypass Suppression chamber main Inside AO butterfly A-c/Air Spring A,F Standard Closed exhaust Outside AO butterfly A-c/Air Spring A>F Standard Closed Drywell air sample 1/2 B Ins ia.e SO valve A-c Spring A>F Open valve D-c iAS B Outside SO Spring A,F Open Suppression chamber 1/2 B Inside SO valve A-c Spring A,F Open (AS air sample B Outside SO valve D-c Spring A>F Open hof6